Global Patent Index - EP 0975591 A1

EP 0975591 A1 2000-02-02 - PROCESSES FOR PRODUCING EPSILON CAPROLACTAMS

Title (en)

PROCESSES FOR PRODUCING EPSILON CAPROLACTAMS

Title (de)

VERFAHREN ZUR HERSTELLUNG VON EPSILON CAPROLACTAM

Title (fr)

PROCEDE DE PRODUCTION DE CAPROLACTAMES EPSILON

Publication

EP 0975591 A1 (EN)

Application

EP 98914690 A

Priority

  • US 9807358 W
  • US 83957697 A

Abstract (en)

[origin: US5962680A] This invention relates in part to processes for producing one or more substituted or unsubstituted epsilon caprolactams, e.g., epsilon caprolactam, which comprises: (a) subjecting one or more substituted or unsubstituted alkadienes to hydroxycarbonylation in the presence of a hydroxycarbonylation catalyst, e.g., a metal-organophosphorus ligand complex catalyst, and neutralization with a base to produce one or more substituted or unsubstituted pentenoic acid salts; (b) subjecting said one or more substituted or unsubstituted pentenoic acid salts to hydroformylation in the presence of a hydroformylation catalyst, e.g., a metal-organophosphorus ligand complex catalyst, to produce one or more substituted or unsubstituted formylvaleric acid salts and/or one or more substituted or unsubstituted epsilon caprolactam precursors; and (c) subjecting said one or more substituted or unsubstituted formylvaleric acid salts and/or said one or more substituted or unsubstituted epsilon caprolactam precursors to reductive amination in the presence of a reductive amination catalyst and cyclization optionally in the presence of a cyclization catalyst to produce said one or more substituted or unsubstituted epsilon caprolactams. This invention also relates in part to reaction mixtures containing one or more substituted or unsubstituted epsilon caprolactams as the principal product(s) of reaction.

IPC 1-7 (main, further and additional classification)

C07D 201/08; C07D 223/10

IPC 8 full level (invention and additional information)

B01J 31/24 (2006.01); C07B 61/00 (2006.01); C07D 201/02 (2006.01); C07D 201/08 (2006.01); C07D 223/10 (2006.01); C08G 69/02 (2006.01); C08G 69/14 (2006.01); C08G 69/36 (2006.01)

CPC (invention and additional information)

C07D 201/02 (2013.01); C07D 201/08 (2013.01); C08G 69/02 (2013.01); C08G 69/14 (2013.01); C08G 69/36 (2013.01); Y02P 20/582 (2015.11)

Citation (search report)

See references of WO 9846565A1

Designated contracting state (EPC)

BE DE ES FR GB IT NL PT SE

EPO simple patent family

US 5962680 A 19991005; AR 012407 A1 20001018; BR 9809572 A 20010731; CA 2285745 A1 19981022; CN 1297433 A 20010530; EP 0975591 A1 20000202; JP 2001521526 A 20011106; KR 20010006329 A 20010126; MX 9909345 A 20000401; PL 336266 A1 20000619; WO 9846565 A1 19981022

INPADOC legal status


2003-12-17 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030606

2003-03-12 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030127

2000-02-09 [RIN1] INVENTOR (CORRECTION)

- Inventor name: EISENSCHMID, THOMAS, CARL

2000-02-09 [RIN1] INVENTOR (CORRECTION)

- Inventor name: BRIGGS, JOHN, ROBERT

2000-02-09 [RIN1] INVENTOR (CORRECTION)

- Inventor name: PACKETT, DIANE, LEE

2000-02-09 [RIN1] INVENTOR (CORRECTION)

- Inventor name: OLSON, KURT, DAMAR

2000-02-09 [RIN1] INVENTOR (CORRECTION)

- Inventor name: MAHER, JOHN, MICHAEL

2000-02-02 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991005

2000-02-02 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): BE DE ES FR GB IT NL PT SE